Castle Rock weather in June: Castle Rock, Colorado: normal highs, lows, rain and records for June
Castle Rock in June has a normal high of 80°F and a normal low of 51°F, a daily mean of 65°F, rising from 75°F on the 1st to 84°F by the 30th. Measurable precipitation falls on 8 days in a normal June, 2.20 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 27°C and low of 10°C, 56 mm of precipitation in June.
- NOAA stationCastle Rock
- Station IDUSC00051401
- Location39.41°N 104.91°W
- Elevation6,185 ft (1,885 m)
- Population83,213
- Jan 46° 18°
- Feb 47° 20°
- Mar 54° 27°
- Apr 59° 33°
- May 68° 42°
- Jun 80° 51°
- Jul 86° 56°
- Aug 84° 55°
- Sep 77° 47°
- Oct 65° 35°
- Nov 54° 26°
- Dec 46° 18°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Castle Rock in June?
The normal high is 80°F and the normal low 51°F, for a daily mean of 65.3°F. June is 10.3°F warmer than May and 5.8°F cooler than July. June is the 3rd warmest month of the year in Castle Rock and the 3rd wettest. Across the month the normal high rises 9°F, from 75°F on June 1 to 84°F on June 30. From one year to the next June's mean temperature typically moves about 2.8°F either way (NOAA's standard deviation), so roughly two Junes in three average between 63°F and 68°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 26%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| June 1 | 75°F | 47°F | 26% | 15% |
| June 8 | 78°F | 49°F | 26% | 16% |
| June 15 | 80°F | 50°F | 26% | 15% |
| June 22 | 83°F | 52°F | 25% | 15% |
| June 30 | 84°F | 54°F | 25% | 15% |
Every day of June: normal high, low and chance of precipitation (warmest afternoon June 30, coldest night June 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| June 1 | 75°F | 47°F | 26% | 15% | 14 h 40 min |
| June 2 | 75°F | 47°F | 26% | 15% | 14 h 50 min |
| June 3 | 76°F | 47°F | 26% | 15% | 14 h 50 min |
| June 4 | 76°F | 47°F | 26% | 15% | 14 h 50 min |
| June 5 | 77°F | 48°F | 26% | 16% | 14 h 50 min |
| June 6 | 77°F | 48°F | 26% | 16% | 14 h 50 min |
| June 7 | 77°F | 48°F | 26% | 16% | 14 h 50 min |
| June 8 | 78°F | 49°F | 26% | 16% | 14 h 50 min |
| June 9 | 78°F | 49°F | 26% | 16% | 14 h 50 min |
| June 10 | 79°F | 49°F | 26% | 16% | 14 h 50 min |
| June 11 | 79°F | 49°F | 26% | 16% | 14 h 50 min |
| June 12 | 79°F | 50°F | 26% | 16% | 14 h 50 min |
| June 13 | 80°F | 50°F | 26% | 15% | 14 h 50 min |
| June 14 | 80°F | 50°F | 26% | 15% | 15 h |
| June 15 | 80°F | 50°F | 26% | 15% | 15 h |
| June 16 | 81°F | 51°F | 26% | 15% | 15 h |
| June 17 | 81°F | 51°F | 26% | 15% | 15 h |
| June 18 | 81°F | 51°F | 26% | 15% | 15 h |
| June 19 | 82°F | 52°F | 26% | 15% | 15 h |
| June 20 | 82°F | 52°F | 26% | 15% | 15 h |
| June 21 | 82°F | 52°F | 26% | 15% | 15 h |
| June 22 | 83°F | 52°F | 25% | 15% | 15 h |
| June 23 | 83°F | 53°F | 25% | 15% | 15 h |
| June 24 | 83°F | 53°F | 25% | 15% | 15 h |
| June 25 | 83°F | 53°F | 25% | 15% | 15 h |
| June 26 | 84°F | 53°F | 25% | 15% | 15 h |
| June 27 | 84°F | 54°F | 25% | 15% | 15 h |
| June 28 | 84°F | 54°F | 25% | 15% | 15 h |
| June 29 | 84°F | 54°F | 25% | 15% | 15 h |
| June 30 | 84°F | 54°F | 25% | 15% | 15 h |
- Normal high
- 80°FJune average
- Normal low
- 51°FJune average
- Precipitation
- 2.20 inmonth total
- Days with precipitation
- 80.01 inch or more
- Days at 90°F or more
- 4
- Daylight
- 14 h 40 min to 15 hJune 1 to June 30
- Days at 70°F or more
- 27
- Days at 80°F or more
- 17
- Sunshine
- 82%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00051401; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Castle Rock in June?
On a given June day the chance of 0.01 inch or more is 26% on average, highest around June 1 (26%). In all, 2.20 in falls on 8 days of a normal June.
In a normal June in Castle Rock, 4 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00051401.
What are the records for June in Castle Rock?
The warmest June temperature on this station's record (since 1893) is 101°F, on June 16, 2021; the coldest is 25°F, on June 1, 1924. The wettest June brought 10.07 in (1965).
The June mean against the 1991-2020 normal of 65.3°F: 2021 72.8°F (+7.5), 2022 72.9°F (+7.6), 2023 62.0°F (−3.3), 2024 69.3°F (+4.0), 2025 67.3°F (+2.0). 4 of 5 ran warmer than normal.
| June | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 72.8°F | +7.5°F | 1.05 in |
| 2022 | 72.9°F | +7.6°F | 0.79 in |
| 2023 | 62.0°F | −3.3°F | 4.59 in |
| 2024 | 69.3°F | +4.0°F | 1.24 in |
| 2025 | 67.3°F | +2.0°F | 1.22 in |
Source: records: ACIS, station USC00051401; recent months: ACIS, station USC00051401. Records and recent months use complete months only.
How does June in Castle Rock compare across Colorado?
Across the 125 places PlainClimate covers in Colorado, June normal highs run from 66°F in Fairplay to 91°F in Lamar; Castle Rock's is 80°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.